Vingtor Stentofon EAM-400 User manual

Replacing Amplifier Module on ENA2400
Item Number
Item Name
Description
102 3922 400
EAM-400
Exigo 2x400 Watt Amplifier Module for ENA2400-DC/ENA2400-AC
1 Accessing the Old Amplifier Module
Before you start the procedure:
1. Switch off and disconnect the amplifier from the power mains
2. Remove all the connection cables from the amplifier
3. Remove the top panel by unscrewing the 8 Torx screws (6 on top, 2 at rear) using a T10 bit
Figure 1: Removing Top Panel
The Amplifier Module has a heat sink on top which abuts a fan at one end.
2 Demounting the Old Amplifier Module
2.1 Removing the Fan
Before demounting the Amplifier Module, the fan adjoining the unit has to be removed.
Figure 2: Removing Fan
1. Use a PZ2 bit to remove the two M4 screws on top of the fan
2. Tilt the fan up from under the cabinet flange and lift it out

2.2 Removing the Amplifier Module
1. Remove the hex spacer from the module using a 7 mm hex key
Figure 3: Removing Hex Spacer
2. Remove the gasket
3. Unplug the following cables from the module (Note the connector positions of the cables):
2x 6-pin red & black cables (DC Power Connectors)
2x 2-pin red & orange cables (Left & Right Transformer Connectors)
2x 2-pin black & yellow & cables (Left & Right Transformer Connectors)
2-pin black & white cable (2-pole IDC)
Figure 4: Screws and Connectors on Amplifier Module
4. Use a PZ2 bit to remove the six M4 screws on top of the module
5. Use a PZ2 bit (magnetic) to remove the M4 screw under the heat sink via the access hole
6. Unplug the Amplifier Module from the Euroconnector at the side of the cabinet
7. Lift the Amplifier Module out of the cabinet

3 Installing the New Amplifier Module
1. Plug the Amplifier Module back into the Euroconnector at the side of the cabinet
2. Insert and fasten the six M4 screws on top of the module. Tighten screws to torque: 1.5 Nm.
3. Insert and fasten the M4 screw under the heat sink via the access
hole. Tighten to torque: 1.5 Nm.
4. Insert the hex spacer back into the module and tighten well
5. Put the gasket back in place by positioning it as shown on the right
Figure 5: Cable Connector Positions
6. Install the fan by inserting and fastening the two M4 screws back on top of the fan (the screw with
2 washers is used in the hex spacer position). Tighten screws to torque: 1.25 Nm.
7. Plug the following cables back into their original connector positions on the module (Figure 5):
2x 6-pin red & black cables (DC Power Connector on the PSU closest to the cabinet center
connects to the left DC Power Connector on the amplifier module closest to the heat sink)
2x 2-pin red & orange cables (cables from Right Transformer to Right Transformer
Connectors, cables from Left Transformer to Left Transformer Connectors)
2x 2-pin black & yellow cables (cables from Right Transformer to Right Transformer
Connectors, cables from Left Transformer to Left Transformer Connectors)
2-pin black & white cable (2-pole IDC from mainboard to 2-pole IDC on amplifier module)
8. Put the top panel back in place and fasten with the 8 Torx screws
A100K11694
DOC NO.
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